| Obs | pH | Fit | Resid | Std Resid |
|
| 8 | 5.2600 | 5.9711 | −0.7111 | −2.71 | R |
| 9 | 5.4300 | 5.9711 | −0.5411 | −2.06 | R |
| 10 | 5.3600 | 5.9711 | −0.6111 | −2.33 | R |
| 17 | 6.9200 | 6.3866 | 0.5334 | 2.04 | R |